Apollo 11

On July 16, 1969, Apollo 11 lifted off on the mission that put men on the moon 4 days later.

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Neil Armstrong

In this July 20, 1969 file photo provided by NASA, astronaut Neil A. Armstrong, Apollo 11 commander, smiles for a photo inside the Lunar Module while it rested on the lunar surface. Armstrong was first out the lunar module, Eagle, onto the dusty surface of Tranquility Base.